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Welcome to NASA's Eyes, a way for you to learn about your home planet, our solar system, the universe beyond and the spacecraft exploring them.
Coursera offers career-advancing courses and degrees from the world's best universities like the University of Illinois, Yale, and the University of London, 100% online.
This harm reduction tool helps to detect dangerous and lethal interactions in substance combinations.
Third most popular repo on GitHub with 234k stars. Free ebooks in many languages, covering a lot of subjects related to programming.
You can track sharks from all over the world, and follow their movement from the latest satellite ping attached to them. OCEARCH is a global non-profit organization conducting unprecedented research on our ocean's giants in order to help scientists collect previously unattainabl…
Simply scroll down and dive beneath the ocean, see what lives under different depths and conditions.
We publish activity books containing exciting puzzles and brainteasers every day! Our books are free to download and share.
A free book collecting over 100 project ideas for learning any programming language with detailed specifications and mock-ups. From CLIs to games, there's something for everyone. Don't know what to build? Browse Projectbook and get building.
Write concisely by substituting "very" + "adjective" with a more concise adjective that has the spirit of very contained within it.
Leading online education from top universities.
Stradr.com is a simulated stock trading platform without the barriers that others include. Stradr allows for fractional shares, aftermarket trading, currencies to reflect your location, and a better user interface that makes it easier to invest for all people, not just day trad…
It is hard to represent our spherical world on flat piece of paper. Cartographers use something called a "projection" to morph the globe into 2D map. The most popular of these is the Mercator projection. Every map projection introduces distortion, and each has its own set of pr…
A website that aims at finding all the educational resources on the web such as courses and books, but also YouTube channes and podcasts.
QuizBot is an advanced AI writing tool that can help you create high-quality questions quickly and easily. Whether you need to write a quiz, a homework, a test or any other type of written content, QuizBot can assist you in generating unique and engaging solutions.
Online web tool for calculating the centroid of triangle and polygon. You can also calculate the centroid of multiple points easily by entering multiple points. The input in taken in x and y coordinates of cartesian system. Calculate with just one click.
Learn something new in just 5 minutes, with daily bite-sized knowledge from books, articles, videos, podcasts & more.
For every student, every classroom.
Real results. We’re a nonprofit with the mission to provide a free, world-class education for anyone, anywhere.
